One problem related to battery dead has been reported for the 2010 Chevrolet HHR. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2010 Chevrolet HHR based on all problems reported for the 2010 HHR.
Air bag connector went bad when the car was 2 yrs old. Some unknown electrical problem has caused a 5 yr battery to be dead after 2 yrs of normal usage. Dealer says air bag connector is not covered under warranty and that the battery is dead.